The effect of blinks and saccadic eye movements on visual reaction times

Vision is suppressed during blinks and saccadic eye movements. We hypothesized that visual reaction times (RTs) in a vigilance test would be significantly increased when a blink or a saccade happened to coincide with the stimulus onset. Thirty healthy volunteers each performed a visual RT test for 15 min while their eye and eyelid movements were monitored by a system of infrared reflectance oculography. RTs increased significantly, many by more than 200 msec, when a blink occurred between 75 msec before and up to 150 msec after the stimulus onset. A similar result was observed with saccades that started 75 to 150 msec after the stimulus. Vision or attention was evidently inhibited before each blink and for longer than the saccades lasted. We suggest that visual suppression is involved in this process, which could explain some of the normal variability in RTs over periods of seconds that has not been adequately explained before.

[1]  D. Burr,et al.  Selective suppression of the magnocellular visual pathway during saccadic eye movements , 1994, Nature.

[2]  C. Eriksen,et al.  Effects of noise letters upon the identification of a target letter in a nonsearch task , 1974 .

[3]  Robert K. Moore,et al.  Eyeblinks and visual suppression. , 1980, Science.

[4]  M. Posner,et al.  Attention and the detection of signals. , 1980, Journal of experimental psychology.

[5]  M H Bonnet,et al.  Performance and sleepiness as a function of frequency and placement of sleep disruption. , 1986, Psychophysiology.

[6]  H. L. Williams,et al.  Impaired performance with acute sleep loss. , 1959 .

[7]  David Burr,et al.  Vision: In the Blink of an Eye , 2005, Current Biology.

[8]  R. Duncan Luce,et al.  Response Times: Their Role in Inferring Elementary Mental Organization , 1986 .

[9]  W. Newsome,et al.  Neural basis of a perceptual decision in the parietal cortex (area LIP) of the rhesus monkey. , 2001, Journal of neurophysiology.

[10]  R. Leigh,et al.  The neurology of eye movements , 2006 .

[11]  A. Tomlinson,et al.  A comparison of saccadic and blink suppression in normal observers , 1997, Vision Research.

[12]  F. C. Volkmann,et al.  Time course of visual inhibition during voluntary saccades. , 1968, Journal of the Optical Society of America.

[13]  D. Dinges,et al.  Performing while sleepy: Effects of experimentally-induced sleepiness. , 1991 .

[14]  F. Donders.  On the speed of mental processes. , 1969, Acta psychologica.

[15]  G. Woodman,et al.  The Effect of Visual Search Efficiency on Response Preparation , 2008, Psychological science.

[16]  A. G. Bills.  Blocking: a new principle of mental fatigue. , 1931 .

[17]  L C Walrath,et al.  Auditory discrimination and the eyeblink. , 1985, Psychophysiology.

[18]  M. Morrone,et al.  Extraretinal Control of Saccadic Suppression , 2000, The Journal of Neuroscience.

[19]  R.W.T.L. Jansen,et al.  Inhibition in Prolonged Work Tasks , 1989 .

[20]  K. Hoffmann,et al.  Neural Mechanisms of Saccadic Suppression , 2002, Science.

[21]  Enrico Simonotto,et al.  The functional anatomy of inspection time: an event-related fMRI study , 2004, NeuroImage.

[22]  Andrew Tucker,et al.  Monitoring eye and eyelid movements by infrared reflectance oculography to measure drowsiness in drivers , 2007 .

[23]  P. Eling,et al.  A Model and Diagnostic Measures for Response-Time Series on Tests of Concentration - Historical Background, Conceptual-Framework, and Some Applications , 1995, Brain and Cognition.

[24]  Geraint Rees,et al.  Blinking Suppresses the Neural Response to Unchanging Retinal Stimulation , 2005, Current Biology.